<template>
  <transition name="move">
    <div class="food" v-show="showFlag" ref="food">
      <div class="food-content">
        <div class="image-header">
          <img :src="food.image">
          <div class="back" @click="hide">
            <i class="icon-arrow_lift"></i>
          </div>
        </div>
        <div class="content">
          <h1 class="title">{{food.name}}</h1>
          <div class="detail">
            <span class="sell-count">月售{{food.sellCount}}份</span>
            <span class="rating">好评率{{food.rating}}%</span>
          </div>
          <div class="price">
            <span class="now"><small>￥</small>{{food.price}}</span><span v-if="food.oldPrice" class="old">￥{{food.oldPrice}}</span>
          </div>
          <div class="cartcontrol-wrapper">
            <cartcontrol :food="food"></cartcontrol>
          </div>
          <transition name="fade">
            <div class="buy" v-show="!food.count" @click.stop.prevent="addFirst">加入购物车</div>
          </transition>
        </div>
        <!-- 商品介绍 -->
        <split v-show="food.info"></split>
        <div class="info" v-show="food.info">
          <h1 class="title">商品信息</h1>
          <p class="text">{{food.info}}</p>
        </div>
        <split></split>
        <div class="rating">
          <h1 class="title">商品评价</h1>
          <ratingselect :selectType="selectType"
                        :onlyContent="onlyContent"
                        :desc="desc"
                        :ratings="food.ratings"></ratingselect>
        </div>
        <div class="rating-wrapper">
          <ul v-show="food.ratings && food.ratings.length">
            <li v-show="needShow(rating.rateType, rating.text)" v-for="rating in food.ratings"
                class="rating-item border-1px">
              <div class="user">
                <span class="name">{{rating.username}}</span>
                <img class="avatar" width="12" height="12" :src="rating.avatar">
              </div>
              <div class="time">{{rating.rateTime | formatDate}}</div>
              <p class="text">
                <i :class="{'icon-thumb_up': rating.rateType === 0, 'icon-thumb_down':rating.rateType === 1}"></i>
                {{rating.text}}
              </p>
            </li>
          </ul>
          <div class="no-rating" v-show="!food.ratings || !food.ratings.length">暂无评论~</div>
        </div>

      </div>
    </div>
  </transition>
</template>

<script>
  import BScroll from 'better-scroll';
  import Vue from 'vue';
  import cartcontrol from '../cartcontrol/cartcontrol';
  import ratingselect from '../ratingselect/ratingselect';
  import split from '../split/split';
  import {formatDate} from '../../common/js/date';

  const POSITIVE = 0;
  const NEGATIVE = 1;
  const ALL = 2;

  export default{
    props: ['food'],
    components: {cartcontrol, split, ratingselect},
    data() {
      return {
        showFlag: false,
        selectType: ALL,
        onlyContent: false,
        desc: {all: '全部', positive: '推荐', negative: '吐槽'}
      }
    },
    created() {
      var _this = this;
      this.$on('ratingtype.select', function (type) {
        _this.selectType = type;
        _this.$nextTick(function () {
          _this.scroll.refresh();
        });
      });
      this.$on('content.toggle', function (onlyContent) {
        _this.onlyContent = onlyContent;
        _this.$nextTick(function () {
          _this.scroll.refresh();
        });
      });
    },
    methods: {
      show() {
        this.showFlag = true;
        this.selectType = ALL;
        this.onlyContent = false;
        this.$nextTick(function () {
          !this.scroll ? this.scroll = new BScroll(this.$refs.food, {click: true}) : this.scroll.refresh();
        });
      },
      hide() {
        this.showFlag = false;
      },
      addFirst(event) {
        if (!event._constructed) return;
        this.$parent.$emit('cart-add', event.target);
        Vue.set(this.food, 'count', 1);
      },
      needShow(type, text) {
        if (this.onlyContent && !text) return false;
        return this.selectType === ALL ? true : type === this.selectType;
      }
    },
    filters: {
      formatDate(time){
        let date = new Date(time);
        return formatDate(date, 'yyyy-MM-dd hh:mm');
      }
    }
  };
</script>

<style lang="scss">
  @import "../../common/sass/mixin";

  .food {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 48px;
    z-index: 30;
    width: 100%;
    background: #fff;

    &.move-enter-active, &.move-leave-active {
      transition: all .3s linear;
      transform: translate3D(0, 0, 0);
    }
    &.move-enter, &.move-leave-active {
      transform: translate3D(100%, 0, 0);
      opacity: .5;
    }
    .image-header {
      position: relative;
      width: 100%;
      height: 0;
      padding-top: 100%;
      img {
        position: absolute;
        top: 0;
        left: 0;
        height: 100%;
        width: 100%;
      }
      .back {
        position: absolute;
        top: 10px;
        left: 0;
      }
      .icon-arrow_lift {
        display: block;
        padding: 10px;
        font-size: 16px;
        color: rgba(255, 255, 255, .6);
      }
    }
    .content {
      position: relative;
      padding: 18px;
      .title {
        line-height: 14px;
        margin-bottom: 8px;
        font-size: 14px;
        font-weight: 700;
        color: rgb(7, 17, 27);
      }
      .detail {
        margin-bottom: 18px;
        line-height: 10px;
        height: 10px;
        font-size: 0;
        .sell-count, .rating {
          font-size: 10px;
          color: rgb(147, 153, 159);
        }
        .sell-count {
          margin-right: 12px;
        }
      }
      .price {
        font-weight: 700;
        line-height: 24px;
        .now {
          margin-right: 8px;
          font-size: 14px;
          color: rgb(240, 20, 20);
        }
        .old {
          text-decoration: line-through;
          font-size: 10px;
          color: rgb(147, 153, 159);
        }
      }
      .cartcontrol-wrapper {
        position: absolute;
        right: 12px;
        bottom: 12px;
      }
      .buy {
        position: absolute;
        right: 18px;
        bottom: 19px;
        z-index: 10;
        height: 24px;
        line-height: 24px;
        padding: 0 12px;
        box-sizing: border-box;
        font-size: 10px;
        border-radius: 12px;
        color: #ffffff;
        background: rgb(0, 160, 220);

        &.fade-enter-active, &.fade-leave-active {
          transition: all .2s linear;
          transform: translate3D(0, 0, 0);
        }
        &.fade-enter, &.fade-leave-active {
          transform: translate3D(0, 10px, 0);
          opacity: 0;
        }
      }
    }
    .info {
      padding: 18px;
      .title {
        line-height: 14px;
        margin-bottom: 6px;
        font-size: 14px;
        color: rgb(7, 17, 27);
      }
      .text {
        font-size: 12px;
        line-height: 24px;
        padding: 0 8px;
        color: rgb(77, 87, 93);
      }
    }
    .rating {
      padding-top: 18px;
      .title {
        line-height: 14px;
        margin-left: 18px;
        font-size: 14px;
        color: rgb(7, 17, 27);
      }
    }
    .rating-wrapper {
      padding: 0 18px;
      .rating-item {
        position: relative;
        padding: 16px 0;
        @include border-1px(rgba(7, 17, 27, .1));
        .user {
          position: absolute;
          right: 0;
          top: 16px;
          line-height: 12px;
          font-size: 0;
          .name {
            display: inline-block;
            vertical-align: top;
            font-size: 10px;
            color: rgb(147, 153, 159);
            margin-right: 6px;
            line-height: 12px;
          }
          .avatar {
            border-radius: 50%;
          }
        }
        .time {
          margin-bottom: 5px;
          line-height: 12px;
          font-size: 10px;
          color: rgb(147, 153, 159);
        }
        .text {
          line-height: 16px;
          font-size: 12px;
          color: rgb(7, 17, 27);
          .icon-thumb_down,
          .icon-thumb_up {
            line-height: 16px;
            margin-right: 4px;
            font-size: 12px;
          }
          .icon-thumb_up {
            color: rgb(0, 160, 220);
          }
          .icon-thumb_down {
            color: rgb(147, 153, 159);
          }
        }
      }
      .no-rating {
        padding: 16px 0;
        font-size: 12px;
        text-align: center;
        color: rgb(147, 153, 159);
      }
    }

  }
</style>
